#pm2.5

[unbfacts]

Iceland has the world’s cleanest air, with a PM2.5 average of 3.4 micrograms per cubic meter, thanks to its focus on renewable energy sources like geothermal power.

[kfighter]

#ライフハック #lifehack #花粉 #pm2.5 #サイズ

（Via： 黄砂などで「花粉爆発」　喘息など重症化も ）

わかり易い。

[szepkerekkocka]

PM2.5 koncentráció Budapest belvárosában 2023.08.20 21:32-kor, azaz percekkel a tüzijáték végét követően. (Pontosabban: ekkor készítettem a képernyőképet, de amint alul látható is a képen, 5 perces átlag van megjelenítve, mert a szenzorok pár percenként küldenek adatot.)

Ugyanez félórával a tüzíjáték végét követően (22:00):

Forrás: https://maps.sensor.community/

Ideteszem még mellé a Ráday utca 26. alatt üzemelő szenzor grafikonját is az elmúlt 24 óráról:

Forrás: https://opensensemap.org/

[gettothedancing]

Researchers Jesse S. Turiel and Robert K. Kaufmann compared levels of PM2.5 reported by monitoring stations controlled by the Chinese government and those controlled by U.S. embassies. PM2.5 is a tiny particle that can lead to serious health consequences if inhaled.

Turiel and Kaufmann compared the Chinese-controlled monitoring stations to the U.S.-controlled monitoring stations in five major cities – Beijing, Shenyang, Shanghai, Guangzhou, and Chengdu – between January 2015 and June 2017. They found statistically significant differences in the amount of pollution reported which suggested that “government-controlled stations systematically under-report pollution levels when local air quality is poor.”

China has one of the worst air qualities in the world and well-documented history of misrepresenting environmental data. In 2012, the government implemented new reforms in an attempt to reduce the amount of data being misreported by local officials. While earlier studies indicated that these reforms were effective, the researchers found that misreporting of data continued even after the 2012 reforms were put in place.

The researchers said that their results are not surprising given the “enormous pressure” local officials are under to report declining amounts of pollution. The Chinese government has increased penalties in cities that fail to reduce pollution and has not provided more resources or financial support to combat pollution.

[rjzimmerman]

[intelligentliving]

Air Pollution Linked To An Increase In Hospitalization For Older Adults

Older adults who breathe in air pollution for only one or two days increase their chances of being hospitalized for several diseases.

[kgyst]

Mennyire szennyezett a levegő? Mérd meg magad! - Qubit

Stuttgarttól Szófiáig, Brindisitől Budapestig több mint 10 ezer európai háztartás csatlakozott ahhoz a német kezdeményezéshez, amely olcsó eszközökkel méri az aktuális légszennyezettséget. A házilag összeállítható, hálózatba kötött szenzorok sokszor magasabb szennyezettséget mutatnak a hivatalosan közölt adatoknál.

[earthstory]

natgeo

Video by Matthieu Paley @paleyphoto

| Heavy smog veils the downtown area of Mongolia’s capital, Ulaanbaatar. From the United States and Germany to India and China, air pollution cuts short an estimated seven million lives globally every year, according to the World Health Organization. In winter, coal stoves and power plants regularly choke Ulaanbaatar with smoke—and lung disease. The smell is acrid and inescapable. This winter authorities closed the capital’s schools for two full months, from mid-December to mid-February, in a desperate attempt to shield children from the toxic air. It’s unclear how effective that measure is. On bad days, handheld pollution monitors max out, as readings soar dozens of times beyond recommended limits. Levels of the tiniest and most dangerous airborne particles, known as PM2.5, once hit 133 times the World Health Organization’s suggested maximum. This video is part of a story I recently shot for @natgeo cities issue. Please visit my profile @paleyphoto for a link to the story